Home / 79,517.20-109,734.34-43,707.80

Finding the Fourth Proportional to 79,517.20, 109,734.34 and 43,707.80

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Solution

The fourth proportional to 79,517.20, 109,734.34 and 43,707.80 is: 60,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517.20 : 109,734.34 = 43,707.80 : x
  2. Step 2: Convert to fraction form
    79,517.20/109,734.34 = 43,707.80/x
  3. Step 3: Cross multiply
    79,517.20x = 109,734.34 × 43,707.80
  4. Step 4: Simplify right side
    79,517.20x = 4,796,246,585.85
  5. Step 5: Solve for x
    x = 4,796,246,585.85/79,517.20
  6. Step 6: Final answer
    x = 60,317.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.